[MacPorts] #42931: tcl: add dtrace variant

[MacPorts]

#42931: tcl: add dtrace variant
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  Reporter:  DanielO      |      Owner:  MarcusCalhoun-Lopez
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  tcl          |
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Comment (by chrstphrchvz):

 I have opened a pull request to try getting this merged finally:
 https://github.com/macports/macports-ports/pull/4102

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Ticket URL: <https://trac.macports.org/ticket/42931#comment:6>
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